CN105281941A - Data transmission method, first CSE, intermediate CSE, and second CSE - Google Patents
Data transmission method, first CSE, intermediate CSE, and second CSE Download PDFInfo
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- CN105281941A CN105281941A CN201410351509.0A CN201410351509A CN105281941A CN 105281941 A CN105281941 A CN 105281941A CN 201410351509 A CN201410351509 A CN 201410351509A CN 105281941 A CN105281941 A CN 105281941A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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Abstract
The invention discloses a data transmission method comprising steps that a first CSE receives a resource request transmitted from a local first AE to a second AE, and sends the resource request to a local second CSE of the second AE via an intermediate CSE, wherein the intermediate CSE indicates one or more CSEs on a path between the first CSE and the second CSE; and the first CSE, the second CSE, and the intermediate CSE store the transmission state of the resource request. The invention also discloses the first CSE, the intermediate CSE, and the second CSE.
Description
Technical field
The present invention relates to machine type communication (MTC, MachineTypeCommunication) terminal management field, be specifically related to a kind of data transmission method, a CSE, middle CSE and the 2nd CSE.
Background technology
Machine and machine (M2M, MachinetoMachine) communication network are made up of multiple M2M node and bearer network.M2M node realizes communication mutually by bearer network, and a M2M node at least comprises an application entity (AE, ApplicationEntity) or a UNIVERSAL BUSINESS ENTITIES (CSE, CommonServiceEntity).Application entity is the logical block performing actual M2M application, and UNIVERSAL BUSINESS ENTITIES is the logical block of application being carried out to management and service.Fig. 1 is M2M system basic framework figure, and this M2M system comprises: application node, intermediate node and base node, and application node here, intermediate node and base node are M2M node; Wherein, application node is the XM of end, comprises AE and CSE, and in practical application, described application node can be intelligent electric meter or measurement and control of temperature transducer or fire alarm or intelligent appliance etc.; Intermediate node connects end XM to the middleware of network side server, and comprise AE and CSE, in practical application, described intermediate node can be gateway etc.; The server of base node normally network side, comprises CSE; Described base node can also comprise AE, and AE here can refer to the management platform of M2M service provider, and described AE needs to be registered on the CSE in base node.
Wherein, M2M application between communication be by CSE between realize alternately, M2M application is connected to CSE by X interface, communicated by Y interface between CSE, and communication prerequisite be M2M application first need to register at local CSE, then just by the communication between CSE realize M2M application mutual;
In the prior art, intermediate node only provides the service to data relay, namely the data between direct transparent transmission application node and base node, and application node and base node cannot be followed the tracks of the data mode sent, and also just cannot cancel the data sending mistake or revise.
Summary of the invention
In order to solve the technical problem of existing existence, the embodiment of the present invention is expected to provide a kind of data transmission method, a CSE, middle CSE and the 2nd CSE.
Embodiments provide a kind of data transmission method, described method comprises:
One CSE receives the resource request that a local AE sends to the 2nd AE, and described resource request is sent to the 2nd CSE of the 2nd AE this locality by a CSE by middle CSE; Wherein, described middle CSE refers to the one or more CSE between a described CSE to the 2nd CSE on path;
A described CSE, the 2nd CSE and middle CSE preserve the transmission state of described resource request.
In such scheme, described resource request comprises: obtain the request of application data in the 2nd AE and send the request of application data to the 2nd AE.
In such scheme, described transmission state comprises: reverse transfers state and/or fl transmission state.
In such scheme, when described transmission state is reverse transfers state, a described CSE, the 2nd CSE and middle CSE preserve the transmission state of described resource request, comprising:
One CSE and middle CSE, after transmission described resource request to respective next CSE, preserves the preservation address of described resource request and the transmission state of described resource request on respective next CSE.
In such scheme, when described transmission state is fl transmission state, a described CSE, the 2nd CSE and middle CSE preserve the transmission state of described resource request, comprising:
Middle CSE and the 2nd CSE, when receiving the resource request that a respective upper CSE sends, preserves the preservation address of described resource request on a respective upper CSE.
In such scheme, a described CSE and middle CSE, after transmission resource request to respective next CSE, preserves the preservation address of described resource request and the transmission state of described resource request on respective next CSE, comprising:
One CSE and middle CSE receives the response message that respective next CSE returns, and described response message, comprising: the preservation address of described resource request and the transmission state of described resource request on described next CSE;
A described CSE and middle CSE resolves described response message, and preserves the preservation address of described resource request and the transmission state of described resource request on respective next CSE.
In such scheme, described middle CSE and the 2nd CSE, when receiving the resource request that a respective upper CSE sends, preserves the preservation address of described resource request on a respective upper CSE, comprising:
Described middle CSE and the 2nd CSE receives the data transfer request that a respective upper CSE sends, and described data transfer request comprises: for preserving the preservation address of the transfer resource of described resource request on resource request and a upper CSE;
Described middle CSE and the 2nd CSE parses the preservation address of resource request described in a respective upper CSE from the described data transfer request received, and preserves described address.
In such scheme, described method also comprises:
One AE obtains the transmission state of described resource request from a described CSE, the 2nd CSE and middle CSE.
Embodiments provide an a kind of CSE, a described CSE comprises: first resource request receiving module, first resource request sending module and the first transmission state preserve module; Wherein,
Described first resource request receiving module, for receiving the resource request that a local AE sends to the 2nd AE;
Described first resource request sending module, for sending to the 2nd CSE of the 2nd AE this locality by described resource request by middle CSE; Wherein, described middle CSE refers to the one or more CSE between a described CSE to the 2nd CSE on path;
Described first transmission state preserves module, for preserving the transmission state of described resource request.
In such scheme, described resource request comprises: obtain the request of application data in the 2nd AE and send the request of application data to the 2nd AE; Described transmission state comprises: reverse transfers state.
In such scheme, described first transmission state preserves the reverse transfers state that module preserves described resource request, comprising:
Described first transmission state preserves module, after described first resource request sending module sends resource request to next CSE, preserves the preservation address of described resource request on next CSE and the transmission state of described resource request.
In such scheme, described first transmission state is preserved module and is preserved the preservation address of described resource request on next CSE and the transmission state of described resource request, comprising:
Described first transmission state preservation module receives the response message that next CSE returns, and described response message, comprising: the preservation address of described resource request and the transmission state of described resource request on described next CSE;
Described first transmission state is preserved module and is resolved described response message, and preserves the preservation address of described resource request and the transmission state of described resource request on the next CSE that is resolved to.
Embodiments provide a kind of middle CSE, described middle CSE comprises: Secondary resource request receiving module, Secondary resource request sending module and the second transmission state preserve module; Wherein,
Described Secondary resource request receiving module, for receiving the resource request that a CSE sends to the 2nd CSE;
Described Secondary resource request sending module, for sending to the 2nd CSE by the next CSE on transmission path by described resource request;
Described second transmission state preserves module, for preserving the transmission state of described resource request.
In such scheme, described resource request comprises: obtain the request of application data in the 2nd AE of the 2nd CSE this locality and send the request of application data to the 2nd AE of the 2nd CSE this locality; Described transmission state comprises: fl transmission state and/or reverse transfers state.
In such scheme, described second transmission state preserves the fl transmission state that module preserves described resource request, comprising:
When the resource request that the upper CSE that Secondary resource request receiving module receives on described transmission path sends, described second transmission state preserves module, preserves the preservation address of described resource request on a described upper CSE.
In such scheme, described second transmission state preserves the reverse transfers state that module preserves described resource request, comprising:
Described second transmission state preserves module, after described Secondary resource request sending module sends resource request to the next CSE on transmission path, preserves the preservation address of described resource request on next CSE and the transmission state of described resource request.
In such scheme, described Secondary resource request receiving module, for the data transfer request that the upper CSE received on described transmission path sends, described data transfer request comprises: for preserving the preservation address of the transfer resource of described resource request on resource request and a upper CSE;
Described Secondary resource state is preserved module from the described data transfer request received, is parsed described resource request preservation address on a described upper CSE, and preserves described address.
In such scheme, described second transmission state is preserved module and is preserved the preservation address of described resource request on next CSE and the transmission state of described resource request, comprising:
Described second transmission state preservation module receives the response message that next CSE returns, and described response message, comprising: the preservation address of described resource request and the transmission state of described resource request on described next CSE;
Described second transmission state is preserved module and is resolved described response message, and preserves the transmission state for the preservation address and described resource request of preserving the transfer resource of described resource request on the next CSE that is resolved to.
Embodiments provide a kind of 2nd CSE, described 2nd CSE comprises: information resources request receiving module, information resources request sending module and the 3rd transmission state preserve module; Wherein,
Described information resources request receiving module, the resource request that the upper CSE for receiving on transmission path sends to this locality;
Described 3rd transmission state preserves module, for preserving the transmission state of described resource request.
In such scheme, described resource request comprises: obtain the request of application data in the 2nd local AE and send the request of application data to the 2nd AE of this locality; Described transmission state comprises: fl transmission state.
In such scheme, described 3rd transmission state preserves the fl transmission state that module preserves described resource request, comprising:
When the resource request that the upper CSE that information resources request receiving module receives on described transmission path sends, described 3rd transmission state preserves module, preserves the preservation address of described resource request on a described upper CSE.
In such scheme, described information resources request receiving module, for the data transfer request that the upper CSE received on described transmission path sends, described data transfer request comprises: the preservation address of described resource request on resource request and a described upper CSE;
Described information resources state preservation module parses the preservation address of described resource request on the upper CSE on described transmission path from the described data transfer request received, and preserves described address.
The data transmission method that the embodiment of the present invention provides, a CSE, middle CSE and the 2nd CSE, a CSE receives the resource request that a local AE sends to the 2nd AE, and described resource request is sent to the 2nd CSE of the 2nd AE this locality by a CSE; A described CSE and the 2nd CSE is two CSE mutually do not registered; Middle CSE between a described CSE, the 2nd CSE and a described CSE to the 2nd CSE on path preserves the transmission state of described resource request.So, the transmission state understanding data (resource request) on each CSE on transmission path can be convenient to, to reach the object of the transmission state of data being carried out to real-time tracking, also facilitate the operations such as the follow-up amendment to data and deletion.
Accompanying drawing explanation
Fig. 1 is M2M system basic framework figure;
The data transmission method flow chart one that Fig. 2 provides for the embodiment of the present invention;
The M2M system basic block diagram that Fig. 3 provides for the embodiment of the present invention;
The data transmission method flowchart 2 that Fig. 4 provides for the embodiment of the present invention;
The basic block diagram of the CSE that Fig. 5 provides for the embodiment of the present invention;
The basic block diagram of the middle CSE that Fig. 6 provides for the embodiment of the present invention;
The basic block diagram of the 2nd CSE that Fig. 7 provides for the embodiment of the present invention.
Embodiment
In the embodiment of the present invention, a CSE receives the resource request that a local AE sends to the 2nd AE, and described resource request is sent to the 2nd CSE of the 2nd AE this locality by a CSE by middle CSE; A described CSE and the 2nd CSE is two CSE mutually do not registered; A described CSE, the 2nd CSE and middle CSE preserve the transmission state of described resource request.
Below by drawings and the specific embodiments, the present invention is described in further detail.
Embodiment one
The embodiment of the present invention one provides a kind of data transmission method, and as shown in Figure 2, the method comprises the following steps:
Step 201 a: CSE receives the resource request that a local AE sends to the 2nd AE, and described resource request is sent to the 2nd CSE of the 2nd AE this locality by a CSE by middle CSE;
Concrete, described middle CSE refers to the one or more CSE between a described CSE to the 2nd CSE on transmission path;
A described CSE and the 2nd CSE is two CSE mutually do not registered;
Here, local CSE refers to the CSE that AE is registered to, that is CSE of a CSE for being registered to described in an AE, the CSE that the 2nd CSE is registered to for the 2nd AE;
Concrete, resource request is here exactly the data needing transmission; Described resource request, comprising: the request and the request sending application data to the 2nd AE etc. that obtain application data in the 2nd AE.
Step 202: a described CSE, the 2nd CSE and middle CSE preserve the transmission state of described resource request;
Due to two CSE that a CSE and the 2nd CSE is not registration mutually, therefore, these two CSE can not direct communication, but needs to realize communication via one or more middle CSE, specific to this embodiment, refer to that realizing a CSE sends to resource request between the 2nd CSE.
Concrete, described transmission state comprises: reverse transfers state and/or fl transmission state;
Described reverse transfers state comprises: after described resource request is sent to next CSE by current C SE, the preservation address of this resource request on next CSE;
Described fl transmission state comprises: the preservation address of this resource request on the previous CSE of current C SE transmission resource request;
Further, above-mentioned backward and fl transmission state all may further include: the transmission state of described resource request, that is, whether success transfers to next CSE from current C SE;
When described transmission state is reverse transfers state, a described CSE, the 2nd CSE and from a described CSE to the 2nd CSE between all middle CSE path preserve the transmission state of described resource request, comprise: a CSE and middle CSE, after transmission described resource request to respective next CSE, preserves the preservation address of described resource request and the transmission state of described resource request on respective next CSE; Concrete, described next CSE creates transfer resource in this locality, described transfer resource, for carrying the transmission state of data (namely resource request) and described resource request.
When described transmission state is fl transmission state, a described CSE, the 2nd CSE and from a described CSE to the 2nd CSE between all middle CSE path preserve the transmission state of described resource request, comprise: middle CSE and the 2nd CSE, when receiving the resource request that a respective upper CSE sends, preserves the preservation address of described resource request on a respective upper CSE;
When described transmission state comprises: when reverse transfers state and fl transmission state, a described CSE, the 2nd CSE and from a described CSE to the 2nd CSE between all middle CSE path preserve the transmission state of described resource request, comprising:
Middle CSE and the 2nd CSE, when receiving the resource request that a respective upper CSE sends, preserves the preservation address of described resource request on a respective upper CSE; And a CSE and middle CSE, after transmission resource request to respective next CSE, preserves the preservation address of the described resource request on respective next CSE and the transmission state of described resource request.
Concrete, a described CSE and middle CSE, after transmission resource request to respective next CSE, preserves the preservation address of described resource request and the transmission state of described resource request on respective next CSE, comprising:
A described CSE and middle CSE receives the response message that respective next CSE returns, and described response message, comprising: the preservation address of described resource request on described next CSE and the transmission state of described resource request; A described CSE and middle CSE resolves described response message, and preserves the preservation address of described resource request on next CSE and the transmission state of described resource request that are resolved to.
Described middle CSE and the 2nd CSE, when receiving the resource request that a respective upper CSE sends, preserves the preservation address of described resource request on a respective upper CSE, comprising:
Described middle CSE and the 2nd CSE receives the data transfer request that a respective upper CSE sends; Described data transfer request comprises: for preserving the preservation address of the transfer resource of described resource request on resource request and a upper CSE;
Described middle CSE and the 2nd CSE parses the preservation address of resource request described in a upper CSE from the described data transfer request received, and preserves described address.
Further, after completing the transmitting procedure of resource request according to such scheme, an AE can obtain the transmission state of described resource request according to actual needs from a described CSE, the 2nd CSE and all middle CSE, one AE also can delete the resource request sent or retouching operation, for example, when an AE knows that resource request does not finally transfer to the 2nd AE, now, one AE can by the two CSE transmission resource modifying request of a CSE to the 2nd AE this locality, or resource removal request, now, all middle CSE between one CSE and the 2nd CSE, and the 2nd CSE all according to described resource modifying request, or resource removal request is modified or deletion action to the resource request that this locality has been preserved, and successively by described resource modifying request, or resource removal request is transferred to object CSE, the operation of asking in described resource modifying request or resource removal request is performed by object CSE.
Below by four concrete examples, the data transmission method that the embodiment of the present invention provides is described in detail.
Following example is particularly applicable in small-sized M2M system as shown in Figure 3, wherein, the local CSE of AE1 is CSE1, mutually register between CSE1 and CSE2, mutually register between CSE2 and CSE3, CSE3 is the local CSE of AE3, it has the resource information of AE3, and the application data store of AE3 is in the resource information of AE3;
Following example reads the application data of AE3 for presetting application scenarios with AE1;
Suppose that the path that CSE1 is sent to CSE3 by CSE2 is pre-configured in CSE1, and the resource address of the known AE3 of AE1.
Example one
The data transmission method that this example provides, its handling process as shown in Figure 4, mainly comprises the following steps:
S401:AE1 sends and obtains request of data to CSE1;
Concrete, described acquisition request of data, comprising: the address of target data; Described acquisition request of data can further include: the mark of target CS E or the address of target CS E; Specific to this example, the address of described target data is the resource address of AE3, the mark being designated CSE3 of described target CS E, and the address of described target CS E is the address of CSE3;
Here acquisition request of data is the data needing transmission;
S402:CSE1 creates the first transfer resource;
Concrete, after CSE1 receives described acquisition request of data, first judge that the address of target data is whether on CSE1, when determining not on CSE1, CSE1 creates the first transfer resource for this acquisition request of data, and described first transfer resource comprises with properties:
1) Next-URI: for preserving the address of transfer resource on next node;
2) data: for preserving the data of transmission, specific to this example, is the acquisition request of data that AE1 sends;
3) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data;
4) delivery-status: for preserving the state of transfer of data.
In addition, if AE1 sends in the acquisition request of data of CSE1 do not comprise the mark of target CS E or the address of target CS E, then can go out the mark of target CS E or the address of target CS E according to the address resolution of target data, method is as follows:
The address of usual target data is made up of two parts, and fore-end is the address of target data place CSE, and other parts are target data relative addresses in this CSE inside, therefore can be obtained the address of target CS E by the address of target data.
S403:CSE1 creates first data transmission request;
Comprise with properties in the first data transmission request that CSE1 creates:
1) data: for preserving the data of transmission, is set to the value of the attribute data of the first transfer resource, namely described acquisition request of data;
2) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data, be set to the value of attribute target in the first transfer resource;
It should be noted that, if described acquisition request of data comprises the mark of target CS E or the address of target CS E, then the target attribute in this data transfer request can omit;
The first data transmission request of establishment is sent to CSE2 by S404:CSE1;
S405:CSE2 creates the second transfer resource;
CSE2 creates the second transfer resource after verifying that CSE1 has the authority creating transfer resource; Concrete, CSE2 can judge by the permissions list in inquiry CSE1 whether CSE1 has the authority creating transfer resource;
Concrete, described second transfer resource comprises with properties:
1) Next-URI: for preserving the preservation address of the upper described acquisition request of data of next node (CSE);
2) data: for preserving the data of transmission, specific to this example, is the acquisition request of data that AE1 sends;
3) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data;
4) delivery-status: for preserving the transmission state of described acquisition request of data.
After S406:CSE2 creates the second transfer resource, send response message to CSE1;
Concrete, described response message comprises following information:
Resource-URI: the preservation address of described acquisition request of data on CSE2 is the address of the second transfer resource in this example;
S407:CSE1 arranges the attribute of the first transfer resource;
Concrete, CSE1 arranges the attribute of the first transfer resource: value Next-URI being set to the resource-URI in response message after receiving the response message of CSE2 transmission according to described response message; Delivery-status is set to be transferred to CSE2, or is set to CSE2 and accepts transmission.
S408:CSE2 creates the second data transfer request;
After CSE2 receives first data transmission request, the mark of inspection target CS E or address are mark or the address of CSE2, if not, then CSE2 creates the second data transfer request, comprises following information in this second data transfer request:
1) data: for preserving the data of transmission, is set to the value of the attribute data of the second transfer resource;
2) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data, be set to the value of attribute target in the second transfer resource;
The second data transfer request created is sent to CSE3 by S409:CSE2;
S410:CSE3 creates the 3rd transfer resource;
CSE3 creates the 3rd transfer resource after verifying that CSE2 has the authority creating transfer resource, and is that the 3rd transfer resource is arranged with properties:
1) Next-URI: for preserving the preservation address of the upper data of next node (CSE) (that is, obtaining request of data);
2) data: for preserving the data of transmission, specific to this example, is the acquisition request of data that AE1 sends;
3) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data;
4) delivery-status: for preserving the transmission state of data.
After S411:CSE3 creates the 3rd transfer resource, send response message to CSE2;
Concrete, described response message comprises following information:
Resource-URI: the preservation address of data on CSE3 is the address of the 3rd transfer resource in this example;
S412:CSE2 arranges the attribute of the second transfer resource;
CSE2 arranges the attribute of the second transfer resource: value Next-URI being set to the resource-URI in described response message after receiving the response message of CSE3 transmission according to described response message; Delivery-status is set to be transferred to CSE3 or be set to CSE3 accept transmission.
S413:CSE3 performs the operation in the second data transfer request;
After CSE3 receives the second data transfer request, the mark of inspection target CS E or address are mark or the address of CSE3, determine it is mark or the address of CSE3, CSE3 performs the operation comprised in attribute data in the second data transfer request, specific to this example be by AE1 ask application data feed back to AE1, its concrete methods of realizing belongs to prior art, repeats no more here.
In this example, CSE1, CSE2 and CSE3 all preserve the reverse transfers state of data, namely, except CSE3, CSE1, CSE2 all save the preservation address of data on next CSE in the transfer resource of this locality establishment, thus CSE1 can be facilitated to inquire about the transmission path of data and state, to facilitate follow-up renewal data and the operation such as deletion.
Example two
On the basis of above-mentioned S401 to S412, further, can also comprise the following steps:
Step 1: when the Gains resources request that AE1 sends needs to upgrade, AE1 transmission is deleted renewal resource request and is upgraded the first local transfer resource to CSE1, CSE1 according to described renewal resource request;
Step 2:CSE1, according to the attribute Next-URI of the first transfer resource, confirms that the next node of transfer of data is CSE2, and afterwards, send and upgrade resource request to CSE2, request upgrades the data attribute of corresponding transfer resource in CSE2.
After step 3:CSE2 receives described renewal resource request, according to the data attribute in information updating second transfer resource upgraded in resource request;
Step 4:CSE2, according to the attribute Next-URI of the second transfer resource, confirms that the next node of transfer of data is CSE3, and afterwards, send and upgrade resource request to CSE3, request upgrades the attribute of corresponding transfer resource in CSE3.
Step 5:CSE3 upgrades the attribute of respective transmissions resource according to described renewal resource request.
Example three:
On the basis of above-mentioned steps 401 to 412, further, can also comprise the following steps:
Step 1: when the Gains resources request that AE1 sends needs to delete, AE1 sends deletion resource request and deletes the first local transfer resource to CSE1, CSE1 according to described deletion resource request;
Step 2:CSE1, according to the attribute Next-URI of the first transfer resource, confirms that the next node of transfer of data is CSE2, afterwards, sends and deletes resource request to CSE2, and corresponding transfer resource in CSE2 is deleted in request.
After step 3:CSE2 receives described deletion resource request, delete the second local transfer resource according to described deletion resource request;
Step 4:CSE2, according to the attribute Next-URI of the second transfer resource, confirms that the next node of transfer of data is CSE3, afterwards, sends and deletes resource request to CSE3, and corresponding transfer resource in CSE3 is deleted in request;
Step 5:CSE deletes respective transmissions resource according to described deletion resource request.
Example four
This example is still introduced for Fig. 4;
S401:AE1 sends and obtains request of data to CSE1;
Concrete, described acquisition request of data, comprising: the address of target data, i.e. the preservation address of target data on target AE; Described acquisition request of data can further include: the mark of target CS E or the address of target CS E, i.e. the mark of target CS E that is registered to of target AE or address; Specific to this example, the address of described target data is the preservation address of described data on AE3, the mark being designated CSE3 of described target CS E, and the address of described target CS E is the address of CSE3;
S402:CSE1 creates the first transfer resource;
Concrete, after CSE1 receives described acquisition request of data, first judge that the address of target data is whether on CSE1, when determining not on CSE1, CSE1 creates the first transfer resource for this acquisition request of data, and described first transfer resource comprises with properties:
1) Prev-URI: for preserving the address of transfer resource on a upper node; Because current C SE1 is the entity initiating to obtain request of data, therefore, this property value can be set to sky or be set to the relevant information of described acquisition request of data, the operation executing state of such as this request;
2) data: for preserving the data of transmission, specific to this example, is the acquisition request of data that AE1 sends;
3) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data;
4) delivery-status: for preserving the state of transfer of data.
In addition, if AE1 sends in the acquisition request of data of CSE1 do not comprise the mark of target CS E or the address of target CS E, then can go out the mark of target CS E or the address of target CS E according to the address resolution of target data, method is as follows:
The address of usual target data is made up of two parts, and fore-end is the address of target data place CSE, and other parts are target data relative addresses in this CSE inside, therefore can be obtained the address of target CS E by the address of target data.
S403:CSE1 creates first data transmission request;
Following information is comprised in the first data transmission request that CSE1 creates:
1) data: for preserving the data of transmission, is set to the value of the attribute " data " of the first transfer resource;
2) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data, be set to the value of attribute target1 in the first transfer resource;
3) the preservation address of the upper described acquisition request of data of resource-URI:CSE1, specific to the present embodiment i.e. address of the first transfer resource;
The first data transmission request of establishment is sent to CSE2 by S404:CSE1;
S405:CSE2 creates the second transfer resource;
After CSE2 verifies that CSE1 has the authority creating transfer resource, create the second transfer resource, described second transfer resource comprises with properties:
1) Prev-URI: for preserving the preservation address of the upper data of a upper node (CSE); In this example, be set to the value of the resource-URI attribute in the first data transmission request received;
2) data: for preserving the data of transmission, specific to this example, is the acquisition request of data that AE1 sends;
3) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data;
4) delivery-status: for preserving the state of transfer of data.
After S406:CSE2 creates the second transfer resource, send response message to CSE1;
Concrete, described response message is used to indicate first data transmission request transmission success;
S407:CSE1 arranges the attribute of the first transfer resource;
Concrete, CSE1 arranges the attribute of the first transfer resource: be set to by delivery-status be transferred to CSE2 after receiving the response message that CSE2 sends according to described response message, or is set to CSE2 and accepts transmission.
S408:CSE2 creates the second data transfer request;
After CSE2 receives first data transmission request, the mark of inspection target CS E or address are mark or the address of CSE2, if not, then CSE2 creates the second data transfer request, comprises following information in this request:
1) data: for preserving the data of transmission, is set to the value of the attribute data of the second transfer resource;
2) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data, be set to the value of attribute target in the second transfer resource;
3) address of the upper transfer resource of resource-URI:CSE2, the present embodiment i.e. address of the second transfer resource;
The second data transfer request created is sent to CSE3 by S409:CSE2;
S410:CSE3 creates the 3rd transfer resource;
CSE3 creates the 3rd transfer resource in this locality after verifying that CSE2 has the authority creating transfer resource, and is that the 3rd transfer resource is arranged with properties:
1) Prev-URI: for preserving the address of transfer resource on a upper CSE; Concrete, this property value is set to the value of resource-URI in the second data transfer request received.
2) data: for preserving the data of transmission, specific to this example, is the acquisition request of data that AE1 sends;
3) target: for the address of the mark or target CS E of preserving the target CS E of transfer of data;
4) delivery-status: for preserving the transmission state of data.
After S411:CSE3 creates the 3rd transfer resource, send transmission data and respond to CSE2;
Concrete, described response message is used to indicate the second data transfer request transmission success;
S412:CSE2 arranges the attribute of the second transfer resource;
Delivery-status is set to be transferred to CSE3 according to described response message, or is set to CSE3 and accepts transmission after receiving the response message that CSE3 sends by CSE2;
S413:CSE3 performs the operation in the second data transfer request;
After CSE3 receives the second data transfer request, the mark of inspection target CS E or address are mark or the address of CSE3, when being confirmed to be mark or the address of CSE3, CSE3 performs the operation comprised in " data " in the second data transfer request, specific to this example be by AE1 ask application data feed back to AE1, its concrete methods of realizing belongs to prior art, repeats no more here;
In this example, CSE1, CSE2, CSE3 all preserve the fl transmission state of transmission data, namely, except CSE1, CSE2, CSE3 all save the transmission preservation address of data on a upper CSE, thus CSE3 can be facilitated to review the historic transmission path of these transmission data and state and inquire about.
Embodiment two
The embodiment of the present invention two provides an a kind of CSE, and as shown in Figure 5, a described CSE comprises: resource request receiver module 51, first resource request sending module 52 and the first transmission state preserve module 53; Wherein,
Described first resource request receiving module 51, for receiving the resource request that a local AE sends to the 2nd AE;
First resource request sending module 52, for sending to the 2nd CSE of the 2nd AE this locality by described resource request by middle CSE; Wherein, described middle CSE refers to the one or more CSE between a described CSE to the 2nd CSE on path;
Described first transmission state preserves module 53, for preserving the transmission state of described resource request.
Concrete, described resource request comprises: obtain the request of application data in the 2nd AE and send the request of application data to the 2nd AE; Described transmission state comprises: reverse transfers state;
Concrete, described first transmission state preserves the subsequent transmission state that module 54 preserves described resource request, comprising:
First transmission state preserves module 53, after described first resource request sending module 52 sends described resource request to next CSE, preserves the preservation address of described resource request on next CSE and the transmission state of described resource request;
Concrete, described first transmission state is preserved module 54 and is preserved transfer resource address on next CSE and data transmission state, comprising:
Described first transmission state preservation module 53 receives the response message that next CSE returns, and described response message, comprising: the preservation address of described resource request on described next CSE and the transmission state of described resource request;
Described first transmission state is preserved module 52 and is resolved described response message, and preserves the preservation address of resource request on next CSE and the transmission state of described resource request that are resolved to.
Embodiment three
The embodiment of the present invention three provides a kind of middle CSE, and as shown in Figure 6, described middle CSE comprises: Secondary resource request receiving module 61, Secondary resource request sending module 62 and the second transmission state preserve module 63; Wherein,
Described Secondary resource request receiving module 61, for receiving the resource request that a CSE sends to the 2nd CSE;
Secondary resource request sending module 62, for sending to the 2nd CSE by the next CSE on transmission path by described resource request;
Second transmission state preserves module 63, for preserving the transmission state of described resource request.
Concrete, described transmission state comprises: reverse transfers state and/or fl transmission state;
When described transmission state is reverse transfers state, described second transmission state preserves the reverse transfers state that module 63 preserves described Secondary resource request, comprise: the second transmission state preserves module 63, after Secondary resource request sending module 62 sends resource request to the next CSE on transmission path, preserve the preservation address of described resource request and the transmission state of described resource request on described next CSE;
When described transmission state is fl transmission state, described second transmission state preserves the fl transmission state that module 63 preserves described Secondary resource request, comprise: the second transmission state preserves module 63, when the resource request that the upper CSE received on transmission path sends, preserve the preservation address of described resource request on a described upper CSE;
When described transmission state comprises: when reverse transfers state and fl transmission state, described second transmission state preserves the transmission state that module 63 preserves described resource request, comprise: the second transmission state preserves module 63, when the resource request that the upper CSE received on transmission path sends, preserve the preservation address of described resource request on a described upper CSE; Second transmission state preserves module 63 after transmission resource request to the next CSE on transmission path, preserves the preservation address of described resource request and the transmission state of described resource request on described next CSE.
Concrete, second transmission state preservation module 63 preserves the preservation address of described resource request on the next CSE on transmission path, comprise: the second transmission state preservation module 64 receives the response message that described next CSE returns, described response message, comprising: the preservation address of described resource request on described next CSE and the transmission state of described resource request; Described second transmission state is preserved module 64 and is resolved described response message, and preserves the preservation address of resource request on described next CSE and the transmission state of described resource request that are resolved to;
Concrete, described Secondary resource request receiving module 62, for the data transfer request that the upper CSE received on transmission path sends, described data transfer request comprises: for preserving the preservation address of the transfer resource of described resource request on resource request and a described upper CSE;
Described Secondary resource state preservation module 63 parses the preservation address of described resource request on the upper CSE on described transmission path from the described data transfer request received, and preserves described address.
Embodiment four
Embodiments provide a kind of 2nd CSE, as shown in Figure 7, described 2nd CSE comprises:
Information resources request receiving module 71 and the 3rd transmission state preserve module 72; Wherein,
Described information resources request receiving module 71, the resource request that the upper CSE for receiving on transmission path sends to this locality;
3rd transmission state preserves module 72, for preserving the transmission state of described resource request.
Described resource request comprises: obtain the request of application data in the 2nd local AE and send the request of application data to the 2nd AE of this locality; Described transmission state comprises: fl transmission state;
Concrete, described 3rd transmission state preserves the fl transmission state that module 72 preserves described resource request, comprise: when the resource request that the upper CSE that information resources request receiving module 71 receives on described transmission path sends, the 3rd transmission state preserves the preservation address that module 72 preserves described resource request on a described upper CSE.
Concrete, described information resources request receiving module 71, for the data transfer request that the upper CSE received on transmission path sends, described data transfer request comprises: for preserving the preservation address of the transfer resource of described resource request on resource request and a described upper CSE;
Described information resources state preserves module 72, preserves address, and preserve described address for parsing described resource request on the upper CSE on described transmission path from the described data transfer request received.
It will be understood by those skilled in the art that, in actual applications, CSE both may as a CSE of a data transfer under different application scenarioss, also may as the middle CSE of a data transfer, also may as the 2nd CSE of a data transfer; A CSE so in real network framework can possess the function of an above-mentioned CSE, middle CSE and the 2nd this three of CSE simultaneously, to adapt to the function needs under different application scene.
In specific implementation process, above-mentioned first resource request receiving module 51, first resource request sending module 52, Secondary resource request receiving module 61, Secondary resource request sending module 62 and information resources request receiving module 71 can be realized by the communication function chip of CSE inside; First transmission state preserves module 53, second transmission state preservation module 63 and the 3rd transmission state preservation module 72 can by the central processing unit (CPU in CSE, CentralProcessingUnit), microprocessor (MPU, MicroProcessingUnit), digital signal processor (DSP, DigitalSignalProcessor) or the storage chip of programmable logic array (FPGA, Field-ProgrammableGateArray) and CSE inside realize.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of hardware embodiment, software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (22)
1. a data transmission method, is characterized in that, described method comprises:
One CSE receives the resource request that a local AE sends to the 2nd AE, and described resource request is sent to the 2nd CSE of the 2nd AE this locality by a CSE by middle CSE; Wherein, described middle CSE refers to the one or more CSE between a described CSE to the 2nd CSE on path;
A described CSE, the 2nd CSE and middle CSE preserve the transmission state of described resource request.
2. method according to claim 1, is characterized in that, described resource request comprises: obtain the request of application data in the 2nd AE and send the request of application data to the 2nd AE.
3. method according to claim 2, is characterized in that, described transmission state comprises: reverse transfers state and/or fl transmission state.
4. method according to claim 3, is characterized in that, when described transmission state is reverse transfers state, a described CSE, the 2nd CSE and middle CSE preserve the transmission state of described resource request, comprising:
One CSE and middle CSE, after transmission described resource request to respective next CSE, preserves the preservation address of described resource request and the transmission state of described resource request on respective next CSE.
5. method according to claim 3, is characterized in that, when described transmission state is fl transmission state, a described CSE, the 2nd CSE and middle CSE preserve the transmission state of described resource request, comprising:
Middle CSE and the 2nd CSE, when receiving the resource request that a respective upper CSE sends, preserves the preservation address of described resource request on a respective upper CSE.
6. method according to claim 4, it is characterized in that, a described CSE and middle CSE, after transmission resource request to respective next CSE, preserves the preservation address of described resource request and the transmission state of described resource request on respective next CSE, comprising:
One CSE and middle CSE receives the response message that respective next CSE returns, and described response message, comprising: the preservation address of described resource request and the transmission state of described resource request on described next CSE;
A described CSE and middle CSE resolves described response message, and preserves the preservation address of described resource request and the transmission state of described resource request on respective next CSE.
7. method according to claim 5, is characterized in that, described middle CSE and the 2nd CSE, when receiving the resource request that a respective upper CSE sends, preserves the preservation address of described resource request on a respective upper CSE, comprising:
Described middle CSE and the 2nd CSE receives the data transfer request that a respective upper CSE sends, and described data transfer request comprises: for preserving the preservation address of the transfer resource of described resource request on resource request and a upper CSE;
Described middle CSE and the 2nd CSE parses the preservation address of resource request described in a respective upper CSE from the described data transfer request received, and preserves described address.
8. method according to claim 1, is characterized in that, described method also comprises:
One AE obtains the transmission state of described resource request from a described CSE, the 2nd CSE and middle CSE.
9. first CSE, is characterized in that, a described CSE comprises: first resource request receiving module, first resource request sending module and the first transmission state preserve module; Wherein,
Described first resource request receiving module, for receiving the resource request that a local AE sends to the 2nd AE;
Described first resource request sending module, for sending to the 2nd CSE of the 2nd AE this locality by described resource request by middle CSE; Wherein, described middle CSE refers to the one or more CSE between a described CSE to the 2nd CSE on path;
Described first transmission state preserves module, for preserving the transmission state of described resource request.
10. a CSE according to claim 9, it is characterized in that, described resource request comprises: obtain the request of application data in the 2nd AE and send the request of application data to the 2nd AE; Described transmission state comprises: reverse transfers state.
11. CSE according to claim 10, is characterized in that, described first transmission state preserves the reverse transfers state that module preserves described resource request, comprising:
Described first transmission state preserves module, after described first resource request sending module sends resource request to next CSE, preserves the preservation address of described resource request on next CSE and the transmission state of described resource request.
12. CSE according to claim 11, is characterized in that, described first transmission state is preserved module and preserved the preservation address of described resource request on next CSE and the transmission state of described resource request, comprising:
Described first transmission state preservation module receives the response message that next CSE returns, and described response message, comprising: the preservation address of described resource request and the transmission state of described resource request on described next CSE;
Described first transmission state is preserved module and is resolved described response message, and preserves the preservation address of described resource request and the transmission state of described resource request on the next CSE that is resolved to.
CSE in the middle of 13. 1 kinds, it is characterized in that, described middle CSE comprises: Secondary resource request receiving module, Secondary resource request sending module and the second transmission state preserve module; Wherein,
Described Secondary resource request receiving module, for receiving the resource request that a CSE sends to the 2nd CSE;
Described Secondary resource request sending module, for sending to the 2nd CSE by the next CSE on transmission path by described resource request;
Described second transmission state preserves module, for preserving the transmission state of described resource request.
14. middle CSE according to claim 13, it is characterized in that, described resource request comprises: obtain the request of application data in the 2nd AE of the 2nd CSE this locality and send the request of application data to the 2nd AE of the 2nd CSE this locality; Described transmission state comprises: fl transmission state and/or reverse transfers state.
15. middle CSE according to claim 14, is characterized in that, described second transmission state preserves the fl transmission state that module preserves described resource request, comprising:
When the resource request that the upper CSE that Secondary resource request receiving module receives on described transmission path sends, described second transmission state preserves module, preserves the preservation address of described resource request on a described upper CSE.
16. middle CSE according to claim 14, is characterized in that, described second transmission state preserves the reverse transfers state that module preserves described resource request, comprising:
Described second transmission state preserves module, after described Secondary resource request sending module sends resource request to the next CSE on transmission path, preserves the preservation address of described resource request on next CSE and the transmission state of described resource request.
17. middle CSE according to claim 15, it is characterized in that, described Secondary resource request receiving module, for the data transfer request that the upper CSE received on described transmission path sends, described data transfer request comprises: for preserving the preservation address of the transfer resource of described resource request on resource request and a upper CSE;
Described Secondary resource state is preserved module from the described data transfer request received, is parsed described resource request preservation address on a described upper CSE, and preserves described address.
18. middle CSE according to claim 16, is characterized in that, described second transmission state is preserved module and preserved the preservation address of described resource request on next CSE and the transmission state of described resource request, comprising:
Described second transmission state preservation module receives the response message that next CSE returns, and described response message, comprising: the preservation address of described resource request and the transmission state of described resource request on described next CSE;
Described second transmission state is preserved module and is resolved described response message, and preserves the transmission state for the preservation address and described resource request of preserving the transfer resource of described resource request on the next CSE that is resolved to.
19. a kind of second CSE, is characterized in that, described 2nd CSE comprises: information resources request receiving module, information resources request sending module and the 3rd transmission state preserve module; Wherein,
Described information resources request receiving module, the resource request that the upper CSE for receiving on transmission path sends to this locality;
Described 3rd transmission state preserves module, for preserving the transmission state of described resource request.
20. the 2nd CSE according to claim 20, it is characterized in that, described resource request comprises: obtain the request of application data in the 2nd local AE and send the request of application data to the 2nd AE of this locality; Described transmission state comprises: fl transmission state.
21. the 2nd CSE according to claim 20, is characterized in that, described 3rd transmission state preserves the fl transmission state that module preserves described resource request, comprising:
When the resource request that the upper CSE that information resources request receiving module receives on described transmission path sends, described 3rd transmission state preserves module, preserves the preservation address of described resource request on a described upper CSE.
22. the 2nd CSE according to claim 21, it is characterized in that, described information resources request receiving module, for the data transfer request that the upper CSE received on described transmission path sends, described data transfer request comprises: the preservation address of described resource request on resource request and a described upper CSE;
Described information resources state preservation module parses the preservation address of described resource request on the upper CSE on described transmission path from the described data transfer request received, and preserves described address.
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| CN201410351509.0A CN105281941B (en) | 2014-07-23 | 2014-07-23 | A kind of data transmission method, the first CSE, centre CSE and the 2nd CSE |
| PCT/CN2014/091750 WO2015117463A1 (en) | 2014-07-23 | 2014-11-20 | Data transmission method, first cse, intermediate cse and second cse |
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| CN201410351509.0A CN105281941B (en) | 2014-07-23 | 2014-07-23 | A kind of data transmission method, the first CSE, centre CSE and the 2nd CSE |
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| CN105281941B (en) | 2019-04-30 |
| WO2015117463A1 (en) | 2015-08-13 |
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